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Don't break identity mapping set up for ACPI resume path.

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With this change, BSP processor context seems to be recovered.
This commit is contained in:
Takanori Watanabe 2008-04-10 18:38:31 +00:00
parent f89db4357e
commit 76f3d08d26
1 changed files with 5 additions and 2 deletions
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7
sys/i386/i386/mp_machdep.c
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@ -718,6 +718,8 @@ assign_cpu_ids(void)
/*
* start each AP in our list
*/
/* Lowest 1MB is already mapped: don't touch*/
#define TMPMAP_START 1
static int
start_all_aps(void)
{
@ -742,8 +744,9 @@ start_all_aps(void)
/* set up temporary P==V mapping for AP boot */
/* XXX this is a hack, we should boot the AP on its own stack/PTD */
kptbase = (uintptr_t)(void *)KPTphys;
for (i = 0; i < NKPT; i++)
for (i = TMPMAP_START; i < NKPT; i++)
PTD[i] = (pd_entry_t)(PG_V | PG_RW |
((kptbase + i * PAGE_SIZE) & PG_FRAME));
invltlb();
@ -793,7 +796,7 @@ start_all_aps(void)
#endif
/* Undo V==P hack from above */
for (i = 0; i < NKPT; i++)
for (i = TMPMAP_START; i < NKPT; i++)
PTD[i] = 0;
pmap_invalidate_range(kernel_pmap, 0, NKPT * NBPDR - 1);